Are you Ready for Nuclear Chemistry Quiz?

The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?

• 33.0 mg
• 12.5 mg
• .33 mg
• 15.8 mg

Tags

NGSS.HS-PS1-8

Which nuclear process is shown in the picture?

• fission
• fusion
• alpha decay
• beta decay

Tags

NGSS.HS-PS1-8

What happens to the atomic number during alpha decay?

• The atomic number decreases by 4
• The atomic number increases by 1
• The atomic number decreases by 2.
• The atomic number stays the same.

Tags

NGSS.HS-PS1-8

Balance the following equation:
¹⁴₆C --> ⁰_-1e + ________

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Tags

NGSS.HS-PS1-8

In the symbol ¹⁶₇N what the 7 stand for?

• Mass number

• Atomic number

• Atomic mass

• Number of neutrons

Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 

• alpha
• beta
• gamma
• none

Tags

NGSS.HS-PS1-8

Alpha particles have a _____ charge.

• +2
• 0
• +1
• -1

Tags

NGSS.HS-PS2-4

Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.

• Fusion
• Fission
• Tracing
• Decay

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

This is an example of...

• Fission  reaction
• Fusion reaction
• Decomposition reaction
• Combustion

Tags

NGSS.HS-PS1-8

What does it mean when an element is radioactive?

• atom emits radiation
• nucei unstable due to uneven p to n ratio
• nuclei changes to become stable
• all of the above

Tags

NGSS.HS-PS1-8